Promoting Direct CO2 Conversion to DME over Zeolite-based Hybrid Catalysts

Autor:	S. Todaro, L. Frusteri, Francesco Frusteri, Catia Cannilla, G. Giordano, Giuseppe Bonura, Massimo Migliori
Rok vydání:	2020
Předmět:	Zirconium Materials science 010405 organic chemistry Coprecipitation hybrid catalysts General Chemical Engineering CO2 conversion Energy Engineering and Power Technology chemistry.chemical_element zeolites General Chemistry 010402 general chemistry 01 natural sciences 0104 chemical sciences Catalysis Fuel Technology Physisorption chemistry Chemical engineering Geochemistry and Petrology Specific surface area Atomic ratio Zeolite DME production Space velocity
Zdroj:	Petroleum chemistry 60 (2020): 508–515. doi:10.1134/S0965544120040076 info:cnr-pdr/source/autori:Frusteri, L.; Bonura, G.; Cannilla, C.; Todaro, S.; Giordano, G.; Migliori, M.; Frusteri, F./titolo:Promoting Direct CO2 Conversion to DME over Zeolite-based Hybrid Catalysts/doi:10.1134%2FS0965544120040076/rivista:Petroleum chemistry/anno:2020/pagina_da:508/pagina_a:515/intervallo_pagine:508–515/volume:60
ISSN:	1555-6239 0965-5441
Popis:	Abstract The direct hydrogenation of CO2 into dimethyl-ether (DME) has been studied in presence of zeolite-based hybrid catalysts, prepared through gel-oxalate coprecipitation of copper, zinc and zirconium precursors (in an atomic ratio of 60 : 30 : 10 respectively) in a solution containing different home-made zeolites (i.e., Sil-1, MFI, Y, FER, BEA, MOR), for a final CuZnZr/zeolite weight composition of 1:1. All the samples were properly characterized with different techniques for determining the textural, structural and morphological nature of the catalytic surface. N2 physisorption highlighted a variation both in the specific surface area and in the pore size distribution from the parent zeolites to the hybrid catalyst. TEM analyses disclosed how the pre-formed zeolite architecture affects the distribution of the oxides on the surface, significantly controlling not only the activity-selectivity pattern under the adopted experimental conditions (TR, 200–260°C; PR, 30 bar, GHSV: 8.800 NL/kgcat/h), but also the catalyst stability during time on-stream.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7dac356bbeb7cd39e6e81e5c28b7331 https://doi.org/10.1134/s0965544120040076 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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